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Speed Detection and Speed Limitation<br />
Speed Detection and Speed Limitation<br />
Speed Agreement Function<br />
There are eight different types of frequency detection methods available. The digital outputs M1 to M6 can be<br />
programmed for this function and can be used to indicate a frequency detection or agreement to any external<br />
equipment.<br />
•Related Parameters<br />
Parameter<br />
No.<br />
Name<br />
Factory<br />
Setting<br />
Change<br />
during<br />
Operation<br />
Control Methods<br />
V/f<br />
Open<br />
Loop<br />
Vector<br />
Closed<br />
Loop<br />
Vector<br />
L4-01 Speed agreement detection level 0.0 Hz No A A A<br />
L4-02 Speed agreement detection width 2.0 Hz No A A A<br />
L4-03 Speed agreement detection level (±) 0.0 Hz No A A A<br />
L4-04 Speed agreement detection width (±) 2.0 Hz No A A A<br />
•Multifunction Output Settings: H2-01 to H2-03 (M1 – M6 function selection)<br />
The table below shows the necessary H2-01 to H2-03 parameter setting for each of the speed agreement functions.<br />
Refer to the timing charts on the following page for details.<br />
Function<br />
Setting<br />
f ref /f out Agree 1 2<br />
f out /f set Agree 1 3<br />
Frequency detection 1 4<br />
Frequency detection 2 5<br />
f ref /f out Agree 2 13<br />
5<br />
f out /f set Agree 2 14<br />
Frequency detection 3 15<br />
Frequency detection 4 16<br />
•Setting Precautions<br />
• With L4-01 an absolute speed agreement level is set, i.e. a speed agreement is detected in both directions<br />
(Up and Down).<br />
• With L4-03 a signed speed agreement level is set, i.e. a speed agreement is detected only in the set direction<br />
(positive level → Up direction, negative level → Down direction).<br />
5-23
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